./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark40_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark40_polynomial.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05dd65db78e92abd77b18eae9719465439afcc4a ......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:17:15,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:17:15,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:17:15,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:17:15,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:17:15,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:17:15,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:17:15,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:17:15,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:17:15,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:17:15,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:17:15,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:17:15,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:17:16,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:17:16,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:17:16,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:17:16,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:17:16,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:17:16,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:17:16,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:17:16,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:17:16,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:17:16,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:17:16,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:17:16,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:17:16,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:17:16,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:17:16,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:17:16,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:17:16,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:17:16,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:17:16,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:17:16,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:17:16,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:17:16,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:17:16,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:17:16,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:17:16,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:17:16,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:17:16,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:17:16,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:17:16,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:17:16,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:17:16,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:17:16,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:17:16,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:17:16,087 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:17:16,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:17:16,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:17:16,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:17:16,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:17:16,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:17:16,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:17:16,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:17:16,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:17:16,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:17:16,090 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:17:16,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:17:16,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:17:16,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:17:16,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:17:16,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:17:16,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:17:16,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:17:16,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:17:16,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:16,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:17:16,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:17:16,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:17:16,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:17:16,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:17:16,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:17:16,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:17:16,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05dd65db78e92abd77b18eae9719465439afcc4a [2020-11-28 03:17:16,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:17:16,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:17:16,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:17:16,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:17:16,374 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:17:16,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark40_polynomial.i [2020-11-28 03:17:16,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/data/13ba2e8bb/0d4623ae401a46aeac2762b775a210f1/FLAGe04efcf2a [2020-11-28 03:17:16,989 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:17:16,990 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/sv-benchmarks/c/loop-zilu/benchmark40_polynomial.i [2020-11-28 03:17:16,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/data/13ba2e8bb/0d4623ae401a46aeac2762b775a210f1/FLAGe04efcf2a [2020-11-28 03:17:17,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/data/13ba2e8bb/0d4623ae401a46aeac2762b775a210f1 [2020-11-28 03:17:17,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:17:17,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:17:17,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:17,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:17:17,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:17:17,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aef3691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17, skipping insertion in model container [2020-11-28 03:17:17,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:17:17,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:17:17,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:17,605 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:17:17,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:17,634 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:17:17,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17 WrapperNode [2020-11-28 03:17:17,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:17,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:17,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:17:17,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:17:17,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:17,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:17:17,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:17:17,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:17:17,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:17:17,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:17:17,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:17:17,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:17:17,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:17:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:17:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:17:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:17:18,334 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:17:18,334 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:17:18,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:18 BoogieIcfgContainer [2020-11-28 03:17:18,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:17:18,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:17:18,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:17:18,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:17:18,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:17" (1/3) ... [2020-11-28 03:17:18,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4053ea4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:18, skipping insertion in model container [2020-11-28 03:17:18,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (2/3) ... [2020-11-28 03:17:18,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4053ea4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:18, skipping insertion in model container [2020-11-28 03:17:18,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:18" (3/3) ... [2020-11-28 03:17:18,345 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark40_polynomial.i [2020-11-28 03:17:18,356 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:17:18,359 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-28 03:17:18,371 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-28 03:17:18,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:17:18,409 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:17:18,409 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:17:18,409 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:17:18,409 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:17:18,410 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:17:18,410 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:17:18,410 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:17:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-28 03:17:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:17:18,437 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:18,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:17:18,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:17:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:18,445 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-11-28 03:17:18,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:18,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393428127] [2020-11-28 03:17:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:18,566 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:17:18,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97103878] [2020-11-28 03:17:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:18,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:19,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:19,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:19,036 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:17:19,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 03:17:19,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:19 BoogieIcfgContainer [2020-11-28 03:17:19,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:17:19,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:19,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:19,254 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:19,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:18" (3/4) ... [2020-11-28 03:17:19,256 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:17:19,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dec5f189-8d19-47cc-aac0-6670fd4eb3d1/bin/uautomizer/witness.graphml [2020-11-28 03:17:19,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:19,302 INFO L168 Benchmark]: Toolchain (without parser) took 1960.47 ms. Allocated memory is still 119.5 MB. Free memory was 96.1 MB in the beginning and 59.4 MB in the end (delta: 36.8 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:19,302 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:19,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.86 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 95.0 MB in the end (delta: 874.6 kB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:19,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.24 ms. Allocated memory is still 119.5 MB. Free memory was 95.0 MB in the beginning and 93.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:19,309 INFO L168 Benchmark]: Boogie Preprocessor took 19.30 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:19,313 INFO L168 Benchmark]: RCFGBuilder took 647.28 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 77.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:19,314 INFO L168 Benchmark]: TraceAbstraction took 915.39 ms. Allocated memory is still 119.5 MB. Free memory was 77.8 MB in the beginning and 60.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:19,316 INFO L168 Benchmark]: Witness Printer took 45.95 ms. Allocated memory is still 119.5 MB. Free memory was 60.8 MB in the beginning and 59.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:19,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.86 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 95.0 MB in the end (delta: 874.6 kB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.24 ms. Allocated memory is still 119.5 MB. Free memory was 95.0 MB in the beginning and 93.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.30 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 647.28 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 77.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 915.39 ms. Allocated memory is still 119.5 MB. Free memory was 77.8 MB in the beginning and 60.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 45.95 ms. Allocated memory is still 119.5 MB. Free memory was 60.8 MB in the beginning and 59.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] x*y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...